Enables a bus interrupt level.
#include <sys/types.h> #include <sys/errno.h> #include <sys/intr.h>
void i_unmask ( handler)
struct intr *handler;
| handler | Specifies the address of the interrupt handler structure that was passed to the i_init service. |
The i_unmask service enables the bus interrupt level specified by the handler parameter.
The i_unmask kernel service can be called from either the process or interrupt environment.
The i_unmask service has no return values.
The i_init kernel service, i_mask kernel service.
Understanding Interrupts, I/O Kernel Services, Processing Interrupts in AIX 5L Version 5.2 Kernel Extensions and Device Support Programming Concepts.